2133453 has 16 divisors (see below), whose sum is σ = 3422720. Its totient is φ = 1154736.

The previous prime is 2133433. The next prime is 2133463. The reversal of 2133453 is 3543312.

Added to its reverse (3543312) it gives a triangular number (5676765 = T₃₃₆₉).

It is not a de Polignac number, because 2133453 - 2⁹ = 2132941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3³ + 3⁴ + 4⁷ + 5³ + 3⁹ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275 + ... + 3072.

It is an arithmetic number, because the mean of its divisors is an integer number (213920).

2^2133453 is an apocalyptic number.

It is an amenable number.

2133453 is a deficient number, since it is larger than the sum of its proper divisors (1289267).

2133453 is a wasteful number, since it uses less digits than its factorization.

2133453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5376.

The product of its digits is 1080, while the sum is 21.

The square root of 2133453 is about 1460.6344511889. The cubic root of 2133453 is about 128.7343249211.

Adding to 2133453 its reverse (3543312), we get a palindrome (5676765).

The spelling of 2133453 in words is "two million, one hundred thirty-three thousand, four hundred fifty-three".